op.py 文件源码

def make_node(self, *inputs):
        """
        Create a "apply" nodes for the inputs in that order.
        """
        if not hasattr(self, 'itypes'):
            raise NotImplementedError("You can either define itypes and otypes,\
             or implement make_node")

        if not hasattr(self, 'otypes'):
            raise NotImplementedError("You can either define itypes and otypes,\
             or implement make_node")

        if len(inputs) != len(self.itypes):
            raise ValueError("We expected %d inputs but got %d." %
                             (len(self.itypes), len(inputs)))
        if not all(inp.type == it for inp, it in zip(inputs, self.itypes)):
            raise TypeError(
                "We expected inputs of types '%s' but got types '%s' " %
                (str(self.itypes), str([inp.type for inp in inputs])))
        return theano.Apply(self, inputs, [o() for o in self.otypes])